Installation Guide for DS937 Ceiling Mounted, Passive
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4.4 Installation Guide for DS937 Ceiling Mounted, Passive Infrared (PIR) Intrusion Detectors 1.0 Description The DS937 is a low-profile, ceiling-mount Passive Infrared Intrusion detector that provides a 360° coverage pattern. The low profile design provides a recessed-mount look, even when surface mounted. It is easy to install with access to wiring and programming options available without removing the detector from the ceiling. With a 50 ft. (14 m) diameter coverage pattern, it is an ideal choice for applications that require ceiling mounting and spot or 360° detection. 2.0 Specifications • Input Power: 9 to 30 VDC; 7.5 to 24 VAC. • Current Draw: 17 mA maximum at 12 VDC. • Standby Current: Intended for connection to DC power supplies capable of supplying power if primary power fails. • Coverage: 50 detection zones. • Detectable Speed: 0.5 to 15 ft./s (0.2 to 5.0 m/s) • Alarm Contacts: NC (Normally Closed) dry contacts, rated 500 mA, 10 W max. @ 30 VDC. • Tamper Switch: NC Integral, Cover-Activated • Sensitivity Selection: Field selectable for 1, 2, 3, or 4 pulse counts. • Storage and +14°F to +122°F (-10°C to +50°C). Operating Temperature: • Humidity: 0 to 95% non-condensing • Dimensions: 5 inches diameter by 1.5 inches high (125 mm diameter x 38 mm high) 3.0 Avoid: 4.0 Mounting 4.1 Use the mounting template to position and drill the wiring hole and starter holes for the two mounting screws provided with the detector. 4.2 Install the provided mounting screws leaving enough space between the screwhead and the mounting surface to allow placement of the detector base. Mounting Height Detection Area Maximum Diameter 8 ft. (2.4 m) 10 ft. (3.0 m) 12 ft. (3.7 m) 38 ft. (11.6 m) 46 ft. (14.0 m) 50 ft. (15.2 m) Only apply power after all connections have been made and inspected. Connect wires to the Terminal Block by passing them through the Wiring Passage. Alarm Output (Normally Closed) Tamper Switch (Normally Closed) Alarm Memory First To Latch Power Input (nonpolar) 1. Remove the Outer Cover Ring (may be pried loose with a small flatbladed screwdriver). 2. Loosen the cover screw. 3. Turn the cover dome counterclockwise and lift it off the detector. 4.3 Mount the detector base Mounting Outdoors Moving Objects Pets and Small Animals Direct Hot or Cold Drafts Heat Sources Windows and Uninsulated Walls Air Conditioning Outlets Water or Oil Vapor Direct Exposure to Sunlight 1. Pry here if necessary 2. Loosen Cover Screw 4. Slide the detector over the mounting screws. 5. Rotate the detector clockwise until the slots firmly engage the mounting screws. 6. Tighten the mounting screws. 7. Rotate Cover to unlock Mounting Holes
Installation Guide for DS937 Ceiling Mounted, Passive